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Finding the Fourth Proportional to 578,133.80, 867,200.70 and 365,557.40

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Solution

The fourth proportional to 578,133.80, 867,200.70 and 365,557.40 is: 548,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,133.80 : 867,200.70 = 365,557.40 : x
  2. Step 2: Convert to fraction form
    578,133.80/867,200.70 = 365,557.40/x
  3. Step 3: Cross multiply
    578,133.80x = 867,200.70 × 365,557.40
  4. Step 4: Simplify right side
    578,133.80x = 317,011,633,170.18
  5. Step 5: Solve for x
    x = 317,011,633,170.18/578,133.80
  6. Step 6: Final answer
    x = 548,336.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.